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What is the survival and
reproduction advantage of L?
The Calcium Absorption Hypothesis
(Flatz and Rotthauwe 1973)
1. Selective advantage to LA: Not food per
se, but improved calcium supply.
2. Causes of calcium deficiency:
-Insufficient sources of Ca+ in

Version 1
Human Biology 3A Final Exam Winter 2012
Name: _
Human Biology 3A
Winter 2012
March 19, 2012
HUMBIO 3A FINAL EXAM
HONOR CODE: In recognition and in the spirit of the Honor Code, I certify that I

Human Biology 2A Final Exam Fall 2011
EXAM CODE: _
Things to Note before taking Practice Final Exam:
We recommend taking this exam as you would a real exam. Study
before taking it. Find a quiet space where you wont be interrupted

2H1} Midterm, Human Brieng 2A EXAM CODE:
For each of the biologists mentioned in questions 2623, choose the species concept Item the
list below that is MUST applicable for their research. You may use options more than once. 1
point each.
A. Morphologic

DNA Replication/Repair
10/28/2015
3 billion nucleotides in the human configuration
STEPS IN DNA REPLICATION
Unwind
o Double helix unwound to make two template strands
o Starts at an ori, two replication forks and multiple starts can
be made
New nucleoti

HumBio 2B
10.19.15
W5L1
Evolution Of Language
7,102 languages
Usually about 8000 speakers in a worlds language
o Language/dialect
o What counts as a speaker?
Native? First language learned? Fluency? Children of
immigrants
o Difference between a language

Last time:
Found evidence that there is a gene L responsible for persistent lactase activity in adulthood
L remains rare compared to the other form of the gene (the other allele), l
Because its effects are visible in ll combo <SEE SLIDE)
With 2 alleles, L

Week 2, Day 1 Notes 10/3/16
Think of Drawin as old man was 22 when the Beagle set sail, all of 26 for famous observations on
Galapagos
Voyage of the Beagle (CHECK DATES)
The Nazca Booby humorous mating dance, foot-lifting, honks/whistles a bit, if mate is

From his own breeding experiments Darwin was able to conclude that all pigeons descended from rock
pigeon might be first data based tree for any real species!
Recent genetic analysis shows all pigeons related by descent and his categories were also on tar

Three key questions:
Why make lactose?
Why this mammalian polymorphism (multiple forms) ? most mammals have no lacotose absorption in
adulthood, pinnipeds have no lactase activity all through, what of the phenotype where we see LA into
adulthood?
Why this

What is the survival and reproduction advantage of L?
THE CALCIUM ABSORPTION HYPOTHESSI (flatz and Rotthauwe 1973): Selective advantage to LA: not
fodd per se, but improved calcium supply
Causes of calcium deficienct: Insufficient sources of Ca+ in diet
L

HumBio 2A
10.19.15
W5L1
Predation/Mutualism
Interactions between predators and prey
o Essential for Keystone species
o Not the biggest/most abundant
o Plays a central role in structuring community BY CONTROLLING THE
POPULATION SIZE of OTHER SPECIES.
Muss

Phylogeny &
Systematics
Darwins brilliant insight
1. To recognize the importance of inter-individual
variation in heritable features;
2. To recognize the creative force, if such an
expression may be used, (CD) from the
differential reproduction of such va

Student Researcher,
Graphic Designer, Web
Developer Positions
Available!
The Huntingtons Outreach Project for
Education, at Stanford (HOPES) is a student-led
educational service project working to build a
web resource on Huntingtons disease (HD).
The site

9/29/2015
Outline, Part II
How did Darwin come
up with Natural
Selection?
The role of Malthus,
And animal breeders;
The point of pigeons?
Like Confessing a
murder!
Alfred R. Wallace & the
Lynnean Society;
At last: Origin of Species
Striated Heron
D

9/28/2015
Evolution Unit
#I
The Tree of
Life:
What led Darwin
to Find It?
(1840 Portrait by G. Richmond)
1
9/28/2015
Darwins own summary
of this lecture:
WHEN on board H.M.S. 'Beagle,' as naturalist,
I was much struck with certain facts
in the [geographic

Recent Documents

HumBio 2A
9/28/15
Wk. 2- Lecture 1
Evolution I
What led Darwin to find evolution?
1st to discover- before age of genetics
*Use Origins for looking at basic
definitions/scientific method
Today: Review on how he got to the HMS Beagle, how he
came across t

Population Genetics
11/10/2015
Modern Synthesis
Darwin and Mendel
Rediscovery & quantification of genetic evolution
Sickle cell anemia
o Requires Darwin and Mendel
Disease kills people and it is GENETIC- but why is it still around?
S is recessive, but